Instrumentation System for Synchronous Recording of EME and Mechanical Deformation Parameters in Lab-Scale Tests of Rock Specimens
A. G. VOSTRETSOV1,2, G. I. KULAKOV1, A. A. BIZYAEV1,2, G. E. YAKOVITSKAYA1
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
2Novosibirsk State Technical University, pr. Marksa 20, Novosibirsk, 630073 Russia
Keywords: разрушение, электромагнитное излучение, нагрузка, деформация, прогноз, нелинейность, квазирезонансный процесс, спектральные характеристики, горные породы, failure, electromagnetic emission, loading, deformation, prediction, nonlinearity, quasi-resonance process, spectrum, rocks
Abstract
The article describes the instrumentation system designed for the synchronous recording of electromechanical emission and mechanical deformation parameters in lab-scale tests of rock specimens. Based on the data of implemented tests, the change in the structure and spectrum of EME signals at the pre-discontinuity stage in rocks is determined, and the failure prediction criteria are proposed.
|
